Vulnerability Monitor

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CVE-2018-3954

Devices in the Linksys ESeries line of routers (Linksys E1200 Firmware Version 2.0.09 and Linksys E2500 Firmware Version 3.0.04) are susceptible to OS command injection vulnerabilities due to improper filtering of data passed to and retrieved from NVRAMData entered into the 'Router Name' input field through the web portal is submitted to apply.cgi as the value to the 'machine_name' POST parameter. When the 'preinit' binary receives the SIGHUP signal it enters a code path that calls a function named 'set_host_domain_name' from its libshared.so shared object.

Published

2018-10-17T02:29:01.500

Last Modified

2024-11-21T04:06:22.587

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.2 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: SINGLE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

8.0

Impact Score

10.0

Weaknesses
  • Type: Primary
    CWE-78
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linksys e1200_firmware 2.0.09 Yes
Hardware linksys e1200 - No
Operating System linksys e2500_firmware 3.0.04 Yes
Hardware linksys e2500 - No
References